Volcanic lava approaches key road on Hawaii’s Big Island

Lava glows at the Mauna Loa volcano (Gregory Bull/AP)

Many people on the Big Island of the US state of Hawaii are bracing for major upheaval if lava from Mauna Loa volcano slides across a key road and blocks the quickest route connecting two sides of the island.

The molten rock could make the road impassable and force drivers to find alternate coastal routes in the north and south.